CN215432736U

CN215432736U - Automatic go up multi-functional anchor clamps of unloading

Info

Publication number: CN215432736U
Application number: CN202121820479.5U
Authority: CN
Inventors: 卢翠林
Original assignee: Nanjing Shangjing Zhizao Technology Co ltd
Current assignee: Nanjing Shangjing Zhizao Technology Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-07
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses an automatic feeding and discharging multifunctional clamp, and belongs to the technical field of automatic processing. The method comprises the following steps: the bottom of the connecting piece is fixed with a mounting piece; the connecting piece is arranged to be connected with the rotating mechanism; the at least two groups of mechanical clamping units are arranged at the bottom of the mounting piece independently; the visual positioning unit and the control element unit are both arranged on the mounting piece; by arranging at least two groups of mechanical clamping units on the mounting part, one group of the mechanical clamping units is used for clamping a workpiece to be machined when in use, and when the workpiece to be machined is transferred to work, the other mechanical clamping unit is responsible for taking out the machined workpiece on the workbench. The synchronous blanking switching structure reduces manual repeated clamping work through continuous transfer and improves the operation efficiency.

Description

Automatic go up multi-functional anchor clamps of unloading

Technical Field

The utility model belongs to the technical field of automatic processing, and particularly relates to an automatic feeding and discharging multifunctional clamp.

Background

At present, in the whole machine tool machining industry, the mechanical automation degree of a factory is relatively low, and particularly in the machining industry with large production quantity requirements, the domestic production technical level only stays at the numerical control machining automation degree level. Compared with the automatic degree of machine tool machining, the manual repeated loading and unloading process is relatively low in technical level, and the complex machining process requires workers to repeatedly complete the processes of taking up, taking down, transferring and the like of products. Moreover, since a plurality of machine tools need to be operated by a plurality of operators, the repeated operation of workers and machines causes a low price feeling and a low efficiency. For the situation, especially under the situation of mass processing production, it is very important to automatically replace manual loading and unloading. The manual work can be gradually replaced by a mode that one machine or a gripping apparatus corresponds to a plurality of machine tools for loading and unloading. On one hand, the whole automation level of the production line is improved, and the stable consistency of production and processing is kept. On the other hand, the production efficiency is improved, meanwhile, the labor input is reduced, the requirements of less labor and continuous production can be met, and the market competitive advantage of enterprises is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides the automatic feeding and discharging multifunctional clamp which is efficient, multifunctional and high in automation degree, and aims to solve the technical problems in the background technology.

The utility model adopts the following technical scheme: the utility model provides an automatic go up multi-functional anchor clamps of unloading, includes:

the bottom of the connecting piece is fixed with a mounting piece; the connecting piece is arranged to be connected with the rotating mechanism;

the at least two groups of mechanical clamping units are arranged at the bottom of the mounting piece independently;

the visual positioning unit and the control element unit are both arranged on the mounting piece;

when the clamping device is used, one group of mechanical clamping units is arranged to clamp a workpiece to be machined, and the clamp moves to the workbench; another set of mechanical gripping units is provided to take off the processed workpiece from the processing table; the rotating mechanism is arranged to make the two groups of mechanical clamping units rotate in a mirror image mode, and at the moment, one group of mechanical clamping units places the workpiece to be processed on the processing table.

In a further embodiment, the mechanical gripping unit comprises:

a wide jaw cylinder mounted on the mounting member;

the first clamping piece and the second clamping piece are respectively connected to two sides of the wide claw cylinder in a transmission manner; and a first clamping part and a second clamping part which are used for being in mutual contact with a workpiece are symmetrically fixed at the bottoms of the first clamping part and the second clamping part.

By adopting the technical scheme: the first clamping part and the second clamping part move oppositely or back to back under the action of the wide claw cylinder, so that the end face of the workpiece is clamped.

In a further embodiment, further comprising: the positioning piece is used for positioning the workpiece in a cavity extending into the workpiece; wherein the positioning member comprises:

the first push-out air cylinder and the second push-out air cylinder are respectively and vertically arranged on the first clamping piece and the second clamping piece; the first push-out cylinder and the second push-out cylinder are arranged oppositely;

the first push rod and the second push rod are respectively and movably arranged in the first clamping part and the second clamping part along the length direction; the outer ends of the first push rod and the second push rod are respectively connected with a first push-out cylinder and a second push-out cylinder through a cantilever guide rod in a transmission way;

the positioning pin is arranged in the second clamping part; the positioning pin is located between the second push rod and the workpiece, and the positioning pin is matched with the machine tool at the same time.

Through adopting above-mentioned technical scheme, when the work piece is cylindrical, because of the terminal surface of work piece has certain radian, consequently only lean on first clamping part and the centre gripping of second insisting portion to be difficult to ensure enough area of contact. In combination with the characteristics of the piston workpiece itself: the clamping fixture is provided with the cavity, so that the positioning pin which can be clamped with the cavity is arranged, the clamping force is enhanced, and meanwhile, the positioning pin can be used for fixing a workpiece during machining.

In a further embodiment, the first clamping part and the second clamping part have the same structure, wherein the first clamping part is a guide sleeve which vertically penetrates through the first clamping piece.

In a further embodiment, at least one group of guide grooves are formed in the first clamping part and the second clamping part along the length direction of the first clamping part and the second clamping part, guide columns are arranged on the first push rod and the second push rod, and the number and the positions of the guide columns are consistent with those of the guide grooves;

the guide posts are positioned in the corresponding guide grooves.

Through adopting above-mentioned technical scheme, play the effect of direction, guarantee that first push rod and second push rod can not take place the skew when the reciprocating motion.

In a further embodiment, a locking piece is arranged on the outer side of the second clamping part and used for fixedly locking the positioning pin according to the working requirement;

the retaining member includes: the positioning groove is vertically formed in the second clamping part;

the locking cylinder is vertically arranged on the second clamping part and is positioned on one side of the positioning groove;

the locking pin is connected to a piston rod of the locking cylinder in a transmission manner;

the locking block is fixedly arranged on the second clamping part; when the locking cylinder is in a stretching state, the locking pin is positioned at the lowest end and is positioned in the positioning groove; at this time, one side of the locking pin is in surface contact with the positioning pin in the second clamping part, and the other side of the locking pin is in surface contact with the locking block.

Through adopting above-mentioned technical scheme, guarantee when anchor clamps remove that the locating pin in the second clamping part can not independently remove, increase the stability of transfer in-process.

In a further embodiment, the interior of the locking block is a hollow structure, a roller is installed in the hollow structure, and a rolling surface of the roller is in surface contact with the locking pin.

In a further embodiment, the visual positioning unit comprises: the camera comprises a bracket fixed on a mounting part, and a visual camera main body and a camera light source which are arranged on the bracket.

Through adopting above-mentioned technical scheme, satisfy the product and grab material direction angle discernment, guarantee the precision that the product snatched. Meanwhile, the stalling direction of the chuck inside the machine tool can be judged while feeding is conducted, and feeding with angle requirements is conveniently completed. In the process, some inspection functional requirements of machine tool machining are added, and the machining reliability is ensured.

In a further embodiment, the control element unit comprises: the electromagnetic valve control module and the electrical wiring module unit are arranged on the connecting frame;

the control element unit is arranged to enable individual control of each mechanical gripping unit.

By adopting the technical scheme, the independent control is realized.

The utility model has the beneficial effects that: by arranging at least two groups of mechanical clamping units on the mounting part, one group of the mechanical clamping units is used for clamping a workpiece to be processed when the mounting part is used, and when the workpiece to be processed is transferred to work (namely, feeding), the other mechanical clamping unit is responsible for taking out the workpiece which is processed on the workbench (namely, discharging). The synchronous blanking switching structure reduces the manual repeated clamping work through continuous transfer and improves the working efficiency.

Meanwhile, a visual detection function is added, so that on one hand, the control precision of the part feeding angle is increased, and the low-cost modification requirement of the old machine tool equipment is met; on the other hand, in the aspect of quality detection, the system records measurement data instead of manual detection, and can track and inquire. The repeated mechanical action is more stable and efficient for the replacement of the device. The equipment meets the function of processing detection after equipment processing while stabilizing feeding, improves the product quality and also improves the stability and compatibility of the equipment.

Drawings

Fig. 1 is a schematic structural view of an automatic loading and unloading multifunctional clamp of the present invention.

Fig. 2 is a bottom view of the multifunctional clamp for automatic loading and unloading of the present invention.

Fig. 3 is a schematic structural view of one of the mechanical gripping units of the present invention.

Fig. 4 is a schematic structural view of the second clamping portion.

Each of fig. 1 to 4 is marked with a connection block 1, a mounting plate 2, a mechanical gripping unit 3, a visual positioning unit 4, a control element unit 5, a piston workpiece 6, a wide claw cylinder 301, a first gripping plate 302, a second gripping plate 303, a first gripping portion 304, a second gripping portion 305, a first push-out cylinder 306, a second push-out cylinder 307, a first push rod 308, a second push rod 309, a positioning pin 310, a cantilever guide rod 311, a guide groove 312, a guide post 313, a positioning groove 314, a locking cylinder 315, a locking pin 316, and a locking block 317.

Detailed Description

The utility model is further described below with reference to the figures and examples.

At present, in a production processing line, when a workpiece needs to be processed, the workpiece which is already processed is generally required to be taken out and placed at a specified position, then the workpiece to be processed is taken from the specified position, and then the workpiece to be processed is transferred to a workbench or a machine tool for processing. In the process, the workbench or the machine tool is in a waiting state from the last workpiece machining to the current workpiece preprocessing, so that the machining efficiency is greatly reduced.

Therefore, in order to solve the technical problems, the automatic feeding and discharging multifunctional clamp is efficient, multifunctional and high in automation degree, and solves the problems of low value and low efficiency of repeated operation of multiple machine tools operated by multiple persons at low cost. The automation level of machine tool machining in the engine piston industry is improved, and a high-efficiency and high-yield production mode of continuous operation can be realized.

As shown in figure 1, the multifunctional clamp capable of automatically feeding and discharging comprises a connecting piece, wherein the upper surface of the connecting piece is used for being connected with a rotating mechanism, and an installation piece is fixed on the lower surface of the connecting piece. The rotating mechanism may be a mechanism in the prior art, and therefore, is not described in detail in this embodiment. At least two groups of mutually independent mechanical clamping units 3 are arranged at the bottom of the mounting piece. In this embodiment, two sets of mechanical clamping units 3 arranged in parallel are selected, and a vision positioning unit 4 is installed between the two sets of mechanical clamping units 3. And control element units 5 are provided at both sides of the mounting member, respectively. In this embodiment, connecting block 1 is selected for use to the connecting piece, and the installed part is mounting panel 2.

In use, one set of mechanical gripping units 3 is arranged to grip a workpiece to be machined, and the gripper is moved onto the table; another set of mechanical gripping units 3 is provided to take off the processed workpiece from the processing table; the rotating mechanism is arranged to rotate the two sets of mechanical gripping units 3 in mirror image, and at this time, one set of mechanical gripping units 3 places the workpiece to be processed on the processing table.

In order to ensure the most basic gripping function of the gripper, in a further embodiment, the mechanical gripping unit 3 comprises: the wide claw cylinder 301 is installed on the mounting plate 2, and the piston rods at two ends of the wide claw cylinder 301 are respectively connected with a first clamping member and a second clamping member in a transmission manner, wherein the first clamping member and the second clamping member in the embodiment are specifically represented as a first clamping plate 302 and a second clamping plate 303. And the bottom parts of the first clamping plate 302 and the second clamping plate 303 are symmetrically provided with a first clamping part 304 and a second clamping part 305 which are used for fixing workpieces and are in surface contact. In the embodiment, the first clamping portion 304 and the second clamping portion 305 move towards or away from each other under the action of the wide claw cylinder 301, so that the clamping effect on the end face of the workpiece is realized. In this embodiment, the first clamping portion 304 and the second clamping portion 305 have the same structure, wherein the first clamping portion 304 is a guide sleeve vertically penetrating through the first clamping member.

However, in actual production, the partial piston workpiece 6 is processed by a full outer circle, in other words, when the workpiece is cylindrical, since the end surface of the workpiece has a certain curvature, it is difficult to secure a sufficient contact area only by clamping the first clamping portion 304 and the second holding portion. Therefore, in order to solve this technical problem, in combination with the characteristics of the plug piece itself: having a cavity. Therefore, the mechanical clamping unit also comprises a positioning piece matched with the cavity.

In a further embodiment, as shown in fig. 2 to 3, the positioning member includes: a first pushing cylinder 306 vertically fixed on the first clamping plate 302, and a piston rod of the first pushing cylinder 306 is located outside the first clamping plate 302; the same also includes a second pushing cylinder 307 vertically fixed on the second clamping plate 303, and the piston rod of the second pushing cylinder 307 is located outside the second clamping plate 303. In other words, the first push-out cylinder 306 and the second push-out cylinder 307 are disposed opposite to each other.

Further comprising: a first push rod 308 and a second push rod 309 movably arranged in the first clamping part 304 and the second clamping part 305 along the length direction, wherein the outer ends of the first push rod 308 and the second push rod 309 are respectively connected with a first push-out cylinder 306 and a second push-out cylinder 307 in a transmission way through a cantilever guide rod 311. In other words, the first push-out cylinder 306 and the second push-out cylinder 307 are power sources of the first push rod 308 and the second push rod 309 respectively, and when the first push-out cylinder 306 and the second push-out cylinder 307 are both in a stretching state, the first push rod 308 and the second push rod 309 move back to each other, and the distance is increased; on the contrary, when the first push-out cylinder 306 and the second push-out cylinder 307 are both in the compressed state, the first push rod 308 and the second push rod 309 move toward each other, and the distance becomes smaller.

The second clamping portion 305 is provided therein with a positioning pin 310, the positioning pin 310 is located between the second push rod 309 and the workpiece, and the positioning pin 310 is adapted to the machine tool at the same time. The positioning pin 310 and the first push rod 308 which can be clamped with the cavity are arranged, so that the clamping force is enhanced, and meanwhile, the positioning pin 310 can also be used for fixing a workpiece during machining.

Based on the above description, the first push rod 308 and the second push rod 309 move in the first clamping portion 304 and the second clamping portion 305 respectively under the action of external force, in order to ensure that the first push rod 308 and the second push rod 309 are always located on the same straight line in the moving process, both the first clamping portion 304 and the second clamping portion 305 are provided with at least one set of guide grooves 312 along the length direction thereof, both the first push rod 308 and the second push rod 309 are provided with guide posts 313, and the number and the positions of the guide posts 313 are consistent with those of the guide grooves 312; the guide posts 313 are located in the corresponding guide slots 312. As shown in fig. 4, the guide slots 312 are provided in two sets which are vertically symmetrical, and the guide posts 313 correspond to the positions and the number of the guide slots 312. The guide column 313 and the guide groove 312 cooperate to guide the first push rod 308 and the second push rod 309 to move back and forth without shifting.

Based on the above description of the structure, the positioning pin 310 is movable inside the second clamping portion 305, so if an external force is applied (for example, the pushing force applied to the workpiece by the first pushing rod 308, which also presses the positioning pin 310 during the action of the workpiece), the positioning pin 310 will move to finally affect the clamping strength and the clamping precision, and the machining accuracy is reduced. Therefore, a locking member is provided on the outer side of the second clamping portion 305, and the locking member is used for fixedly locking the positioning pin 310 according to work requirements.

In a further embodiment, the retaining member includes: a positioning groove 314 vertically opened on the second clamping portion 305, and a locking cylinder 315 is provided at one side of the positioning groove 314, the locking cylinder 315 being installed on the second clamping portion 305. The piston rod of the locking cylinder 315 is drivingly connected with a locking pin 316. The second clamping portion 305 is further provided with a locking block 317, and the locking block 317 is arranged to satisfy the following positional relationship: when the locking cylinder 315 is in a stretching state, the locking pin 316 is located at the lowest end and located in the positioning groove 314; at this time, one side of the locking pin 316 is in surface contact with the positioning pin 310 in the second clamping portion 305, and the other side is in surface contact with the locking block 317. When the clamp moves, the positioning pin 310 in the second clamping part 305 cannot move autonomously, and the stability in the transfer process is improved. In other words, the positioning pin 310 is not easily moved by other external forces during the clamping process.

In the present embodiment, the visual positioning unit 4 includes: the camera comprises a bracket fixed on a mounting part, and a visual camera main body and a camera light source which are arranged on the bracket. The material direction angle identification is grabbed to satisfy the product, guarantees the precision that the product snatched. Meanwhile, the stalling direction of the chuck inside the machine tool can be judged while feeding is conducted, and feeding with angle requirements is conveniently completed. In the process, some inspection functional requirements of machine tool machining are added, and the machining reliability is ensured.

In a further embodiment, the control element unit 5 comprises: the electromagnetic valve control module and the electrical wiring module unit are arranged on the connecting frame; the control element unit 5 is arranged to realize individual control of each mechanical gripping unit 3.

The working principle of the embodiment is as follows: the actuating mechanism drives the clamp to move above the piston workpiece 6, the visual positioning unit 4 photographs characteristic positions of the parts to determine the angle direction of the parts, and the wide claw cylinders 301 in one group of the mechanical clamping units 3 control the first clamping plate 302 and the second clamping plate 303 in transmission connection with the wide claw cylinders to move oppositely to clamp the end face of the piston workpiece 6. The synchronous executing mechanism drives the clamp to move to the inside of the machine tool to take a picture to determine the position and the size of the processed part, the piston workpiece 6 which is processed on the machine tool is taken down through the other mechanical clamping unit 3, the rotating mechanism rotates the mounting plate 2, the piston workpieces 6 in one group of mechanical clamping units 3 are loaded into the machine tool, the current wide-claw cylinder 301 is opened, the executing mechanism drives the clamp to withdraw from the machine tool, and the machine tool automatically runs.

In the clamping process, when the piston workpiece 6 adopts a full-excircle processing technology, the visual positioning unit 4 is used for photographing a positioning disc of a machine tool to determine the angle direction, and under the state that the wide-claw cylinder 301 clamps the piston workpiece 6, the piston rods of the first push-out cylinder 306 and the second cylinder are controlled to respectively control the first push rod 308 and the second push rod 309 which are in transmission connection with the piston rods, wherein the first push rod 308 directly abuts against a cavity of the piston workpiece 6, and the second push rod 309 pushes the positioning pin 310 inside the second push rod to abut against the cavity.

During machining, the machine tool equipment pulls on the internal positioning pin 310 (i.e., the positioning pin 310 is placed on the machine tool together with the piston workpiece 6 during machining, in other words, the piston workpiece 6 moves synchronously with the corresponding positioning pin 310), the wide-claw cylinder 301 is opened, and the machine starts machining. After the angle position is determined and the size and the appearance of the part are detected by repeatedly photographing after the machining is finished, after the wide claw cylinder 301 is opened, the workpiece is taken out and clamped, the internal positioning pin 310 is loosened by the machine tool, the first push-out cylinder 306 and the second push-out cylinder 307 are both in a retraction state, the positioning pin 310 in the piston workpiece 6 is pushed into the second clamping part 305 by the first push rod 308 and the second push rod 309 which are in transmission connection with the first push rod and the second push rod, the locking cylinder 315 pushes the locking pin 316, the locking pin 316 is simultaneously abutted against the positioning pin 310 and the locking block 317, and the internal positioning pin 310 is fixed. The executing mechanism drives the clamp to transfer out of the machine tool for blanking. After the operation flow, the machining flow of the piston workpiece 6 is completed, and the above operation is repeated thereafter.

Claims

1. The utility model provides an automatic go up multi-functional anchor clamps of unloading which characterized in that includes:

2. The multifunctional clamp for automatic feeding and discharging as claimed in claim 1,

the mechanical gripping unit includes:

a wide jaw cylinder mounted on the mounting member;

3. The multifunctional clamp for automatic feeding and discharging as claimed in claim 2, further comprising: the positioning piece is used for positioning the workpiece in a cavity extending into the workpiece; wherein the positioning member comprises:

the positioning pin is arranged in the second clamping part; the positioning pin is positioned between the second push rod and the workpiece; the positioning pin is matched with the machine tool at the same time.

4. The multifunctional clamp for automatic feeding and discharging as claimed in claim 2, wherein the first clamping portion and the second clamping portion have the same structure, and wherein the first clamping portion is a guide sleeve vertically penetrating through the first clamping member.

5. The multifunctional clamp for automatic feeding and discharging as claimed in claim 3,

the first clamping part and the second clamping part are respectively provided with at least one group of guide grooves along the length direction, the first push rod and the second push rod are respectively provided with a guide post, and the number and the position of the guide posts are consistent with those of the guide grooves;

the guide posts are positioned in the corresponding guide grooves.

6. The multifunctional clamp for automatic feeding and discharging as claimed in claim 3,

a locking part is arranged on the outer side of the second clamping part and used for fixedly locking the positioning pin according to the working requirement;

7. The multifunctional clamp for automatic feeding and discharging as claimed in claim 6,

the inside of latch segment is hollow structure, install the gyro wheel in the hollow structure, form the face contact between the rolling surface of gyro wheel and the fitting pin.

8. The multifunctional clamp for automatic feeding and discharging as claimed in claim 1,

the visual positioning unit includes: the camera comprises a bracket fixed on a mounting part, and a visual camera main body and a camera light source which are arranged on the bracket.

9. The multifunctional clamp for automatic feeding and discharging as claimed in claim 1,

the control element unit includes: the electromagnetic valve control module and the electrical wiring module unit are arranged on the connecting frame;